Mechanism for collecting dust



` Dec. 8,;1931. P. GASNERTAL 1,835,770

-MIEICHANISM FOR COLLECTING DUSTv Filed Dec. 1, 192-8 UNITED STATESPATENT OFFICE 111111.11 GAsNEa AND sIenUND GAsNna, or BROOKLYN, NEWYoan. AssTeNons To MANaosn MERGANTILE co. INe., or NEW Yoan, N. Y., AcoaroaArroN or NEW YORK MEcnAN-isu ron coLLEc'r'TNG nuarl Applicationled December 1, 1928. Serial No. 323,114.

`5 can be readily applied to any existing type of vacuum cleaner, and bymeans of which the dust and dirt can be collected in a receptacleWhich/can be conveniently separated from the vacuum cleaner, so as toeliminate the necessity of dumping the dust and dirt out of the clothfilter bag which is now ordinarily employed for'this purpose.

Another object of our invention is to provide a vacuum cleanerattachment which will make it lpossible to use a receptacle for the dustwhich can be made of fragile material such as paper, without thenecessity of supporting the fragile paper by means of fabric or thelike.

Another object of our invention is to provide a vacuum cleanerattachment in which it shall be possible to use a receptacle for thedirt which can be made of celluloid, waxed paper, or`other non-porousand translucent or transparent material. receptacles made ofl glass,rubber, metal, or any other material.

Another object of our invention is to provide an improved dustcollecting receptacle tachment, by means of which the resistance to thepassage of air out of thedevice will be lowered so that the vacuumlcleaner can exert a. greater suction and can have greater eiiciency.

Other objects of our invention will be set forth in the followingdescription and drawings which illustrate a preferred embodimentthereof,it being understood that the above general statement of the objects ofour inventlon is intended merely to generally explain the same and notto limit it in any manner.

Fig. 1 is an elevation of the essential part of the vacuumcleanerattachment,

Fig. 2 is a sectional view on the line 2--2 of Flg. 1.

Fig. 3 is a perspective view showing the device in position. Y

We can also -use t suitably combined with a vacuum cleaner at The vacuumcleaner V may be of any suitable type. The standard type of vacuumcleaner comprises a metal housing having a nozzle N, a motor M, and anoutlet nozzle O.

It is now customary to connect a bag made of porous fabric to thisoutlet nozzle. This.

bag permits the air to escape therefrom, but retainsthe dust. It hasalso been roposed to place a paper bag within said fabric bag, saidpaper bag being also connected to the outlet nozzle, in order to collectthe dust in a paper bag which is readily removable.

However, in this construction it was necessary to firmly support thewall of the relatively fragile paper bag, by the wall of the cloth bag.

According to our invention, it is not necessary to locate the paper bagwithin any other receptacle, although this can be done without departingfrom our invention. However, if the paper bag is enclosed in a cloth bagor other receptacle, it is not necessaryto sup ort the wall of the paperbag by the wall o the cloth bag, or other receptacle.

A hose 1 is provided with a coupling member2a by means of which it canbe coupled to the outletnozzle O of the cleaner. This hose 1 comprisesan outer wall 2 made of a suitable fabric, and an inner lining 3. Thisinner lining 3 is not uniform throughout the length of the hose 1. Saidlining is substantially air-tight up to about the point A of the hose 1.For example, said lining can be made -v of. rubber or relativelytightly-woven fabric up to about the point A. The lining is made orelatively porous material in the lateral leg thereof and up tothe'coupling member 4. The object of this is to permit the air to escapesufficiently from the upper part of the hose 1. The top of the hose isprovided with an ordinary clamp- 5, having a hook which can be connectedto the handle of the vacuum.

cleaner. However, it is not necessary that the withoutranysubstantialescape of air, so asA impermeable material. If a celluloidrecepy v tacle is used, it can be provided with a valvefor removingthedust therefrom, and if desired, a receptaclemade of impermeable materialsuch as Celluloid or the like, could have a. panel or part made ofporous cloth .or the like. Since, the air escapes between the point l fA and the mouth ofthe bag, it is clear that the air escapes from theconnecting means 1n a portion of sald connectlng' means whJ ch e isnon-aligned with the axis ,of the receptacle.

- For example, and as shown in Fig. 3, the

axis ofthe receptacle B is substantially vertical. Likewise, it may beconsidered that the air escapes to some extent from the Vupper'part ofthe vertical leg of the connectlng means (namely, the hose 1), and that'the 'air valso escapes from the lateral branch of the connecting means,said lateral branch being directly connected to the receptacle B. Theaxis of the lateral branch may be' considered as being substantial# lyhorizontal, so that this is non-aligned with the axis of the receptacle,and the axis ofthe top partof the vertical branch of the hose- 1`namely, above the point A), is also out of a ignment'with the axis ofsaid receptacle B. The axis of the vertical le of the connecting meansis substantially de ed by the arrow X shownlin Fig.f3, the axis of thelateral branch of theconnecting means is substantially defined by thearrow Y, and `Vthe axis of the receptacle B is substantially delined bythe arrow Z.

We prefer that the coupling provided by the member should not beabsolutely airtight softhatthe air can escape to a limited extent fromthe top of the rece tacle B. The

operation of our device is as ollows If the hose or connecting member 1was absolutely air-tight, then the air pressure created by the blower ofthe vacuum cleaner would burst areceptacle made of relatively fragilematerial such as paper. However, by permittingsuflicient air to escapefrom the `upper part of the connecting hose, a fra 'he e air hassufficient velocity when it reaches the point A to carry the dust aroundit, and to ,throw the same into the receptacle even "though the airescapes from the lateral leg of the connecting member. Experience hasshown that substantially all of the dust is collected in the receptacleB. If an impermeable collecting receptacle is used, then the slightescape of air at -thetop portion thereof l enables the air current tothrow the dust into the collecting receptacle B. It is not absolutelynecessary to have a slight leak in the coupling between thedustcollecting receptacle and the connecting member 1, although this ispreferable. It will be noted that a substantial part of the air escapesin the lirst part or leg of the device while the air is not moving inthe direction'ofthe collecting receptacle.

. Generally speaking, `our invention covers any device whereby the aircurrent is forced into a dust collecting receptacle connected to theoutlet nozzle of the vacuum cleaner by means of an intermediateconnecting member, enou h air being allowed to leak out of the attacment or out of the receptacle to enable ,itheldust to enter and toremain in the recepac e.

It will be noted that the air and dust move continuously in a currentwhich follows 'the Wall of the connecting means, so that the dust isdeposited into the receptacle, without the necessity of forming alcounter current. On

the contrary, in prior devices such as shown in .V S. Patent No.1,514,87 5, dated Novemb er 11, 1924, the air current Was effective toforce the dust into the receptacle, only if a counter current 'wasformed in the air curdeparting from the spirit of our invention.

We claim:

1. In a vacuum`cleaner )having an outlet nozzle and a dust collectingreceptacle, con-v necting means intermediate'said receptacle and saidoutlet nozzle, said connecting means having a plurality of non-alignedbranches so that an air current moving in said connecting means iscaused to change its direction of movement at thejunction of saidnonaligned branches, said connecting means being permeable to air atsaid junction and said junction being anterior to said receptacle, the

'having a plurality of non-aligned and successive branches and havingits outer end por- Ition connected to said receptacle so that if dust iscaused tomove in said connecting means by an air current the dust 1sprojected 1nto said. receptacle, said connecting means being permeableto air in aportion thereof which is directly adjacent to and which isanterior to and which is inclined to said receptacle. 3. In a vacuumcleaner having an outlet nozzle and a .dust collecting receptacle,connecting means intermediate said outlet nozzle and said receptacle,said receptacle being connected to said connecting means at the outerportion of said connecting means so that a current of air and dust whichtraverses said connecting means directly enters said receptacle to leavethe deposited dust therein, said connecting means havin a portionthereof which is substantially allgned with said outlet nozzle, saidconnecting means having the next portion thereof anterior to saidreceptacle and laterally inclined to said Iirst portion and permeable toair.

4. In a vacuum cleaner having an outlet nozzle and a dust collectingreceptacle, connecting means intermediate said receptacle and saidoutlet nozzle, said connecting means having an'opening at the endportion thereof which is remote from the outlet nozzle and to which thereceptacle is connected, said connecting means being shaped to causedust which is aspirated into said connecting means by an air currenttomove into said receptacle without the Yformation of a counter currentanterior to said receptacle, so that the receptacle serves to positivelycheck the forward movement of the dust, said connecting means havinga'portion thereof which is anterior to said receptacle and which ispermeable to air, the axis of said permeable portion being non-aligned.with the axis of said receptacle. 5. In a vacuum cleaner having anoutlet nozzle and a dust collecting receptacle made wholly ofvpaper andwhich is free from external supporting means for the wall thereof,

upwardly inclined connecting means intermediate said receptacle and saidoutlet nozzle, said connecting means being shaped to cause a current ofair and dustmoving therein to 15 progress free from a counter currenttherein and in a direction towards said receptacle so that the dust isdirectly projected into said receptacle,said connectingmeans having anopening at the end portion thereof which is Se remote from said outletnozzle and to which said receptacle is detachably connected with itsmouth upwards, so that the dust is directly deposited in said receptacleby the air current, said connecting means being suciently permeable toair to prevent the rupture of said paper receptacle, .under the pressureof said air current.

In testimony whereof we aiiix our signatures. :a PHILIP GASNER.

SIGMU'ND GASNER.

